Several open-source developers host dedicated desktop apps on GitHub specifically built for the NW.js framework used by RMMZ.
Steep learning curve; you must use a proper JSON editor (like VS Code or Notepad++) to avoid breaking the file structure. Step-by-Step Guide: How to Edit Your RMMZ Save File
Because the data is compressed, you cannot simply open the file in Notepad and start typing. You need a dedicated editor or decoder to safely read and alter the values. Best RMMZSAVE Editors and Tools rmmzsave editor
The knowledge of how save files work is not just for players; it is also valuable for game developers. For instance, to create a "New Game Plus" (NG+) mode, a developer could store the required data for inheritance (items, skills, etc.) in a separate file, then read and apply it when a new game is started.
Because RPG Maker MZ save files are essentially compressed and obfuscated JSON string objects, advanced users can unpack them, edit them using a text editor like Notepad++, and repack them. Step-by-Step Guide: You need a dedicated editor or decoder to
Use the search function ( Ctrl + F ) to find what you want to change: Search gold to change your money. Search _hp or _mp to alter character health. Search _level or _exp to level up characters.
: Files are encoded using UTF-8 text serialization. Because RPG Maker MZ save files are essentially
Advanced users often use specialized translation decoders like the Save-Editor Decoder to transform the .rmmzsave into a raw, uncompressed .json file.
The easiest and most popular method is using free, web-based save editors. Websites like Save Editor Online support RPG Maker MZ out of the box.
An is a specialized third-party tool designed to read, decipher, and modify the data stored within .rmmzsave files, which are the standard save format for RPG Maker MZ games. These editors allow players to bypass difficult sections, test different game outcomes, or fix progression-stopping bugs by directly altering variables like gold, character stats, and item quantities. Where to Find RMMZSave Files
Current gold, items, weapons, armor, and key items.